Dumping-car.



U. P. ASTROM.

DUMPING CAR APPLICATION FILED 110 1.16, 1909.

Patented' Apr. 12, 1910.

2 SHEETS-SHEET 1.

5 14400 Moe @331 Hem/1e o 0. P. ASTROMQ DUMPING GAR. APPLICATION FILED NOV.16,1909.

Patented Apr. 12, 1910.

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wi/b'n one-o Q. 1 WM MOM UNIT STATES PATENT OFFICE.

CARL P. AsraoM, OF'HASIBR-OUCK HEIGHTS, NEW JERSEY, ASSIGNOR m M. H. Tartan- WELL COMPANY, NEW YORK, N.

Y.-,"A-CORPORA'1ION or NEW Yong.

DUMPING-CAR.

- Specification of Letterslatent.

Application filed mama-r 16, 1909. Serial No. 528,270.

T 0, all whomet may concern: 1

Be it known that I, CARL 1 Asrnoin'a citizen of the United Stat'es, residing at Hasbrouck Heights, inthe county of Bergen and State of New Jersey, have invented cer-, 1n. Dumping-Cars, of 'which the following is a tain new and useful Improvements full, clear, and exact specification.

Tl11S invention relates to dum mg cars, and more particularly has re erence to dumping cars adapted to carry cinders, molten metal, and the like, wherein the-car is loaded and transported to a distance, and

then dumped by mechanical power.

H The object of the invention is. to' provide improvements in the actuating mechanism,

whereby the movement of the car body in damping is more readily controlled, and also to providef'a' mechanism wherein the checking devices are-contained Within the actuating cylinder, but capable of adjustment and inspection without-dismantling the cylinder.

1 Asherein shown, the invention is appliedto a single end dumping can-"generallylof- A furthenob ject of the invention is to provide a motor mechanism, wherein the actuati'ng area in umping the loaded. car body than in returning the" empty car bodyto upright position, thereby involving less strain upon the mechanism, economizing power and enabling the empty car bodyv to-be more efiectually controlled. l

the type shown in the patent to Treadwell and Astrom, No. 892,385, .dated1-Ju-ne-30,

The invention is shown withaespect to one form thereof in the accompanying draW-' mgs, where1n Figure 1 is an elevation of -drnnping car' embodying the invention, jand'Fig. 2i's a. 7 partial 'plan View suflicient to show the actu siting-connections and relative arrangementi of parts. I

1 re resents side frames (only. onel emg shown having ,at one end, pedestals12,"in

which an axle 3 carrying wheels 4 ismount-vv ed, the car body being'supported between the axle box 5 and the frame by spring 6.-

Side frames 1 are connected at the rearend by traverse bracing 7 At the'front end, the I side frames 1, whichpreferablyare of steel castings, are connectedfb' c rryinga body securely bolted there U piston will have a. greater eii'ect-iveand thence by cross; frame 9,

bolster connected to a bogie track 11, having Wheels 12; 'At the front of the cross frame 9 is provided a draw head 1 1 having Patented A r. 12,1910.

a standard railway coupling 15 therein and ,racks' 22 on which roll gears23, rigidly carried with the trunnions' 20. Between thea l roller and the gear 23 is acylindrical portion which-is embraced by the strap of a yoke 25, so that as the yoke 25 is rec1pr0- cated the roller 20 and the gear 23 roll on.

the'track 21 and 22 respectively.

26 is a stop mounted on the side frames Tfor limiting the, endwisefmovement of the trunnions in dumping.

1111 .order to dump the car body and return one of the said frames 1 'a' stationary actuating cylinder 27, containing a piston 28 connected with a hollow piston rod 29 passittoupright position, here is mounted-on 8O i'ng through'a stuflin 'b 'ox 30,- and carrying I crosshead 31, which slides on a track formed on the. side frames .1. The crossliead- 31 is suitably connected-to the yoke 25,. as

by bolts 32.,' To operate the piston, and

thereby actuate thefcar .body, a suppl pi e 1 v, 341' leading througha controlling valve 35,

ipes 56 and 37 tothe respective. ends oP-the-cylinder, is provided,

the valve admitting fluid' pressure -to one.

side ofthe piston, while opening'the other sideof the pistonlto exhaustln'dumping a heavily laden car,-it is idesirable to, provide fluid pressure meansfor has passed the dead center. QInorder to roefiectiv'e and easily contrelled, while atjthe same time disposed so. as toibe protected against injury, the "actuating pistoniis made a hollow, and the checking .I'neans-cpmbined with the hollow piston. At the same" time, 1

- piston hasa greater e the parts are so arranged that the actuating ective area-.iin moving 'controlling the rate of movement of the car body, as it is liable to acquire considerable momentum after it has once been started and .vide avfluidcontrolling means which w' be order to accomplish this, "29 is bored to form a fluid checking chambox 52 for therod 41 at the car body. outward to dumping position than it has in returning the car body from dumping position to normal position. In the hollow piston her 39, containing a stationary piston mountedon a. rod 41, held at'one end by aring 42 and the cylinder head 43, which cylinder head 43 is separable from the main cylinder head 44 for the purposes hereinafter to be described. At the other side of cylinder head43 is a clamping collar 45.

The rod 41 contains a small passage 47 connecting opposite sides of the stationary piston 40, and mounted at one end of the rod is a needle valve 48, which may be adjusted by an outside handle 49 to control the area of the passage, and thereby the rate ofretardation. It, will be understood that the space 39 will be filled with a fluid such as 011-, and as the piston 29-moves in the cylinder 27 the oil will be forced back and forth between op posite sides of piston 40. The

rod 41 passes through a stuffing box 50 in the hollow "piston rod 29 at one end, and the piston 28 carries a head 51 and a stufling the other end. When it is desired toremove the piston 28, this can be: done by releasing the split coupling 53 connecting the forward end of the piston rod 29 with the crosshead 31, and then the piston 29can be withdrawn through the end of the main cylinder 27. When it is desired to. inspect or repair the stufiing box 52, this can-be.done by removing the small 7 head 43, having first unscrewed theneedle valve stem and the collar 45. Then the gland 55 for stuffing box 52 can be removed as the rod 41 can be drawn to the left of Fig. 2 a sufficient distance without through the stufling boy 50. It will thus be seen that all of the wearing parts of 'this' motor actuating mechanlsm are rendered. dismantling the.

easily accessible without cylinder or the car body, and that the check: ing rate can be varied readily by the needle valve.

It is thought that the operation will be clear in view of the foregoing description,

it being seen that when the fluid actuating pressure is applied on the largeend of the piston 28 to dump the car, greater power 5 a tilting car-body,

being pulled will be secured than when it is applied to return the car to central position.

Various modifications and changes may be made in the specific construction Without varying from the scope of the invention.

Having thus described my invention, Iv

"declare that what I claim as new and desire to secure by Letters Patent, is,"

1. The combination in dumping car, with a car-body mounted to discharge at one end, of a cylinder for actuating the car-body to and from dumping position, and a checking cylinder within said actuating cylinder.

2. The combination in a dumping car, of a cylinder and piston for actuating the car-body Lo and from dumping position, and car-body comprising a/ moving cylinder and stationary piston within said actuating cylinder.

.. 3. The combination in a dumpingcar, of a tilting and endwise movable car-body, an actuating cylinder and piston having a greater actuating area in one direction than a checking device for said in the other, and checking means in the 4 cylinder effective in both directions.

4. The combination body mounted to tilt on trunnions, of a cylinder and piston connected to actuate said a passage between.

with a. dumping caropposite sides of said stationary piston, and

means for regulating the area of said I passage.

In testimony whereof I aflix my signature, in presence of two witnesses.

CARL P. ASTROM. -Witnesses:

J. S. WOOSTER, Gno. N. KERR. 

